first pygame

import pygame
import sys
import random

pygame.init()
screen_width=1000
screen_height=500
root=pygame.display.set_mode((screen_width,screen_height))
pygame.display.set_caption('Raindrops')
FPS=pygame.time.Clock()
run=True
coords=[]
gravity=1
player_speed=25
# enemy1=''


class entity:
    def __init__(self,x,y,width,height):
        self.x=x
        self.y=y
        self.width=width
        self.height=height

enemy=entity(0,0,50,50)
player=entity(500,400,50,50)


def get_coords():
    if enemy.y>100:
        enemy.x=random.randrange(0,screen_width-enemy.x+enemy.width)
        enemy.y=0
        a=coords.append([enemy.x,enemy.y])
    # print(coords)



def drop():
    global enemy1
    for i in coords:
        i[1]+=gravity
        enemy1=pygame.draw.rect(root,(255,0,0),(i[0],i[1],enemy.width,enemy.height))
        # print(enemy1)
        return enemy1



while run:
    root.fill((0,0,0))
    get_coords()
    # drop()
    for i in coords:
        i[1]+=gravity
        enemy1=pygame.draw.rect(root,(255,0,0),(i[0],i[1],enemy.width,enemy.height))

    player1=pygame.draw.rect(root,(0,0,255),(player.x,player.y,player.width,player.height))
    pygame.display.update()
    FPS.tick(999)

    enemy.y+=gravity
    print(player1)
    # print(enemy1)

    for event in pygame.event.get():
        # print(event)
        if event.type==pygame.QUIT:
            pygame.quit()
            sys.exit()

        keys=pygame.key.get_pressed()

        if keys[pygame.K_LEFT] and player.x>player_speed:
            player.x-=player_speed
        if keys[pygame.K_RIGHT] and player.x+player.width<screen_width-player_speed:
            player.x+=player_speed

        if player1.colliderect(enemy1):
            print('hit')

    # enemy.y+=gravity

    # root.fill((0,0,0))
    # get_coords()
    # drop()
    # player1=pygame.draw.rect(root,(0,0,255),(player.x,player.y,player.width,player.height))
    # pygame.display.update()
    # FPS.tick(999)

    # print(player1)